Abstract

The present invention relates to a cathode active material for a lithium secondary battery, comprising: a central part comprising a lithium nickel manganese oxide that contains nickel (Ni) and manganese (Mn) and does not contain cobalt (Co); and a surface part, which is disposed on the surface of the central part, contains cobalt (Co) and includes a plurality of contact particles, isolated particles, a contact interface, non-contact interfaces and a coating layer, wherein the contact particles are in contact with the coating layer with the contact interface therebetween, the isolated particles are not in contact with the coating layer, a pair of contact particles adjacent to each other from among the plurality of contact particles are in contact with each other with the non-contact interface therebetween, and relation 1 is satisfied.

IPC Classes  ?

• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• C01G 53/00 - Compounds of nickel
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present invention provides a solar module comprising: a solar cell unit having a battery cell obliquely disposed to form a set inclination angle with a provision surface; an encapsulant unit provided to surround and seal the solar cell unit; and a rear protection unit, which is spaced apart from the rear of the solar cell unit, has a shape in which a metal plate is bent in multiple stages, and has a first inclined section obliquely disposed to form a first inclination angle with the provision surface.

IPC Classes  ?

• H01L 31/049 - Protective back sheets
• H01L 31/0216 - Coatings
• H01L 31/05 - Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
• H01L 31/18 - Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
• H01L 31/0224 - Electrodes

Abstract

Provided is a waste gas treatment device including a waste gas inlet configured to introduce waste gas discharged from a semiconductor processing chamber and an adsorption unit configured to adsorb competitive adsorption gas from the waste gas flowing from the waste gas inlet, and configured to adsorb xenon (Xe) from the waste gas from which the competitive adsorption gas has been removed, and recover the adsorbed xenon. Also provided are waste gas treatment methods, and waste gas adsorption and recovery systems including the present waste gas treatment devices.

IPC Classes  ?

• C01B 23/00 - Noble gasesCompounds thereof
• B01D 53/04 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
• B01J 20/04 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
• B01J 20/18 - Synthetic zeolitic molecular sieves
• B01J 20/34 - Regenerating or reactivating

Abstract

The present invention relates to a movable battery pack processing device comprising: a first container to which a discharging module or a cooling module is mounted; and a second container to which a battery pack processed by the discharging module or the cooling module of the first container is transferred and to which a disassembling module for disassembling the battery pack is mounted. According to the present invention, a waste battery disassembling process is modularized, so that cost required for a waste battery processing can be reduced and stability also can be significantly improved.

IPC Classes  ?

• H01M 10/54 - Reclaiming serviceable parts of waste accumulators
• B09B 3/35 - Shredding, crushing or cutting
• B09B 3/40 - Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
• B09B 101/16 - Batteries
• H01M 10/44 - Methods for charging or discharging
• H01M 10/613 - Cooling or keeping cold

Abstract

The present invention relates to an anode active material for a lithium secondary battery and a manufacturing method thereof, the anode active material comprising a silicon-based substrate and a coating layer coated on the surface of the silicon-based substrate, wherein: the coating layer comprises a carbon layer and one or more nano-carbon beads; the carbon layer and the nano-carbon beads contain sulfur; and the content of the coating material in the coating layer may be 0.10-1.50 weight%.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 4/48 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 10/052 - Li-accumulators
• C01B 33/18 - Preparation of finely divided silica neither in sol nor in gel formAfter-treatment thereof
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

An embodiment of the present invention provides an energy harvesting device including: an object; a propagation area disposed in a first area of the object; a coherence area disposed in a second area of the object and having a thickness varying along a width direction of the object; and an energy conversion unit disposed in the coherence area and converting elastic wave energy into electrical energy.

IPC Classes  ?

• H02N 2/18 - Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
• H02N 11/00 - Generators or motors not provided for elsewhereAlleged perpetua mobilia obtained by electric or magnetic means
• H10N 30/30 - Piezoelectric or electrostrictive devices with mechanical input and electrical output, e.g. functioning as generators or sensors

Abstract

A metasurface according to one aspect of the present invention is a metasurface comprising: a substrate; and a plurality of nanostructures formed on at least one surface of the substrate, wherein each of the nanostructures comprises: a structure portion made of a polymer; and a high-refractive material layer formed on a surface of at least a part of the structure portion, and the high-refractive material layer has a refractive index of 2.0 or greater with respect to light having a wavelength of 400 nm.

IPC Classes  ?

• G02B 1/00 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements
• G02B 3/00 - Simple or compound lenses
• G02B 5/32 - Holograms used as optical elements

Abstract

DGDG111) in the range of 1400 to 1625±5 ㎝-1222) in the range of 1625±5 to 2100 ㎝-1.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 4/48 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

22) into the alloy, wherein the waste lithium secondary battery powder comprises more than 0 wt% to 40 wt% or less of the carbon with respect to the total weight of the waste lithium secondary battery powder. According to the present invention, the recovery rate of valuable metals may be improved through a process of treating a large amount of waste resources through a dry process of collecting valuable metals in the form of a molten material dissolved in iron.

IPC Classes  ?

• C22B 23/02 - Obtaining nickel or cobalt by dry processes
• H01M 10/54 - Reclaiming serviceable parts of waste accumulators

Abstract

An apparatus for producing molybdenum oxyhalide according to one aspect of the present invention comprises a reaction zone to which a halogen-containing gas is supplied, wherein a raw material containing molybdenum oxide is transferred so as to pass through the reaction zone, and molybdenum oxyhalide is produced.

IPC Classes  ?

• C01G 39/04 - Halides
• B01J 8/08 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with moving particles
• B01J 8/10 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with moving particles moved by stirrers or by rotary drums or rotary receptacles
• B01J 19/08 - Processes employing the direct application of electric or wave energy, or particle radiationApparatus therefor
• B01J 19/20 - Stationary reactors having moving elements inside in the form of helices, e.g. screw reactors
• C23C 16/14 - Deposition of only one other metal element

Abstract

2444), instead of elemental sulfur, as a sulfurizing agent, whereby the method exhibits improved efficiency and easier temperature control compared to conventional processes.

IPC Classes  ?

• C22B 23/02 - Obtaining nickel or cobalt by dry processes
• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
• C22B 23/06 - Refining

Abstract

244) instead of sulfur as a sulfide raw material, thereby having temperature control easier than that of a conventional method, and enabling efficiency to increase during the manufacture of nickel matte.

IPC Classes  ?

• C22B 23/02 - Obtaining nickel or cobalt by dry processes
• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
• C22B 23/06 - Refining

Abstract

The present invention relates to a cathode active material for a lithium secondary battery, the cathode active material comprising a first lithium transition metal oxide and a second lithium transition metal oxide, wherein the first lithium transition metal oxide and the second lithium transition metal oxide each independently have a molar ratio (Li/Me) of lithium to transition metal of greater than 1, an average particle diameter (D50) of the first lithium transition metal oxide is greater than an average particle diameter (D50) of the second lithium transition metal oxide, the first lithium transition metal oxide and the second lithium transition metal oxide are included in a weight ratio of 60:40 to 80:20 (first lithium transition metal oxide:second lithium transition metal oxide), and the first lithium transition metal oxide and the second lithium transition metal oxide each independently have a BET specific surface area of 1.0-3.5 m2/g.

IPC Classes  ?

• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

One embodiment of the present invention provides an energy harvesting device comprising: a body; a plurality of unit pattern portions formed and arranged periodically on the body, each including a protrusion formed to protrude in one direction from a surface of the body and a through-hole formed to penetrate the body along the one direction; a defect portion disposed on the body and formed at a position adjacent to some of the plurality of unit pattern portions; and an energy conversion portion disposed in the defect portion.

IPC Classes  ?

• H02N 2/18 - Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
• H02N 11/00 - Generators or motors not provided for elsewhereAlleged perpetua mobilia obtained by electric or magnetic means
• H10N 30/30 - Piezoelectric or electrostrictive devices with mechanical input and electrical output, e.g. functioning as generators or sensors

Abstract

The present invention relates to a cathode active material for a lithium secondary battery, the cathode active material comprising a lithium metal oxide having a composition with excess lithium and manganese, wherein the lithium metal oxide has a structure in which lithium layers and transition metal layers are alternately layered, the average interval between the lithium layers is 2.13 angstrom or more, and, in lithium metal oxide, the the molar ratio of cobalt to metals that exclude lithium is 0.05 or less.

IPC Classes  ?

• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present disclosure relates to a 3-dimensional nanostructure based on metamaterials. More specifically, the 3-dimensional nanostructure is a fibrous structure comprising: meta molecules including non-conductive nanoparticles and first conductive nanoparticles that are smaller than the non-conductive nanoparticles and surround the surface of the non-conductive nanoparticles; and second conductive nanoparticles positioned in spaces between the meta molecules, wherein the fibrous structure includes a straight region, a curved region that is bent or folded, a twisted region, a tapering region in which the minor axis diameter decreases or increases, or a combination thereof.

IPC Classes  ?

• G02B 1/00 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements
• G02B 5/00 - Optical elements other than lenses
• B82Y 20/00 - Nanooptics, e.g. quantum optics or photonic crystals
• B82Y 40/00 - Manufacture or treatment of nanostructures

Abstract

The present invention relates to an elastic wave focusing device, comprising: an elastic bar which extends in a first direction by a first length; and a sealed cavity which is formed in the elastic bar, wherein the cavity is filled with a first fluid, and if vibration is applied to an end portion of the elastic bar, elastic waves are focused on the elastic bar between the end portion and the center of the cavity.

IPC Classes  ?

• G10K 11/26 - Sound-focusing or directing, e.g. scanning
• G10K 11/04 - Acoustic filters
• G10K 11/16 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general

Abstract

A method for detecting abnormalities in window-based electrodialysis equipment, according to one embodiment, comprises the steps of: setting an input window range for a control variable of electrodialysis equipment; converting time-series data of the control variable into continuous section unit data corresponding to the input window range; predicting a management variable corresponding to the control variable through an artificial intelligence model trained on the basis of the continuous section unit data; and comparing the predicted management variable to a reference value so as to detect whether there are abnormalities in the electrodialysis equipment.

IPC Classes  ?

• C02F 1/469 - Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
• B01D 61/42 - ElectrodialysisElectro-osmosis
• C02F 1/00 - Treatment of water, waste water, or sewage
• G05B 23/02 - Electric testing or monitoring
• G05B 13/04 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators

Abstract

A method for predicting lithium concentration based on artificial intelligence, according to an embodiment, comprises: a cleaning step of obtaining a plurality of first variables through preprocessing of a plurality of initial variables used in an electrodialysis facility that produces lithium; a preprocessing step of inputting the plurality of first variables to a boosting-based artificial intelligence model to preprocess same, and obtaining final variables; and a step of inputting the final variables to the boosting-based artificial intelligence model to predict the concentration of the lithium.

IPC Classes  ?

• G06N 20/20 - Ensemble learning
• B01D 61/54 - Controlling or regulating

Abstract

A lithium production method according to an embodiment of the present invention comprises the steps of: calculating a main variable for determining a production amount of a production tank in an electrodialysis facility through an artificial intelligence model; setting a range of input conditions for the calculated main variable; and inputting, to the artificial intelligence model, input conditions within the set range to calculate a production amount and production results, which correspond to the input conditions, and if the calculated production amount and production results meet specific conditions, determining final operating conditions from the production amount and production results.

IPC Classes  ?

• C22B 26/12 - Obtaining lithium
• C22B 3/42 - Treatment or purification of solutions, e.g. obtained by leaching by ion-exchange extraction
• C22B 3/02 - Apparatus therefor
• G06N 5/04 - Inference or reasoning models
• G06Q 50/04 - Manufacturing

Abstract

32444) by using waste liquid generated in the step of preparing the sodium bicarbonate, wherein the impurity leaching inhibitor includes a sulfur (S)-containing material. According to the present invention, impurities such as mercury (Hg) and lead (Pb) may be prevented from being leached in waste generated during a process of manufacturing sodium bicarbonate and gypsum. Accordingly, as designated waste can now be treated as general waste, a reduction in waste treatment costs can be expected.

IPC Classes  ?

• C01D 7/18 - Preparation by the ammonia-soda process
• C01F 11/46 - Sulfates

Abstract

333), and a particle size reactor in which the particle size of sodium bicarbonate is coarsened in a sodium bicarbonate-generating aqueous solution at 60-100℃.

IPC Classes  ?

• C01D 7/00 - Carbonates of sodium, potassium, or alkali metals in general
• C01F 11/46 - Sulfates

Abstract

The present invention relates to a cathode active material for a lithium secondary battery, the material being a lithium transition metal oxide containing an excessive amount of lithium, an excessive amount of nickel and a buffer metal element, wherein the lithium transition metal oxide has a lithium to lithium transition metal oxide molar ratio of 1.02 to 1.1 and a nickel to transition metal molar ratio of 0.75 or more, the lithium transition metal oxide has a structure in which a lithium layer and a transition metal layer are alternately stacked, and at least a part of a lithium lattice site in the lithium layer is substituted with a buffer metal element so that anisotropic shrinkage and expansion are suppressed during charging and discharging.

IPC Classes  ?

• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 4/04 - Processes of manufacture in general
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present invention relates to a cathode active material for a lithium secondary battery which is a lithium transition metal oxide containing excess lithium, excess nickel, and a buffer metal element, the lithium transition metal oxide having molar ratio of lithium to lithium transition metal oxide of 1.02-1.1 and molar ratio of nickel to transition metal of 0.75 or greater. The lithium transition metal oxide has a sphericity coefficient of 0.8 or greater and has a basic structure in which lithium layers and transition metal layers are alternately stacked, wherein the buffer metal element in the transition metal layers is partially substituted into the lithium layers, and lithium ions in the lithium layers are partially substituted into the transition metal layers, thereby suppressing anisotropic contraction and expansion during charging and discharging.

IPC Classes  ?

• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• C01G 53/00 - Compounds of nickel
• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 10/052 - Li-accumulators
• H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

2433).

IPC Classes  ?

• C01D 7/00 - Carbonates of sodium, potassium, or alkali metals in general
• C01F 11/46 - Sulfates

Abstract

Provided is a waste heat recovery device. A waste heat recovery device according to the present invention comprises: an evaporator for heating a working fluid with exhaust gas to provide superheated steam; a condenser for condensing the superheated steam to exchange heat with a fluid to be heated, and discharging a supercooled liquid; and a preheater which is disposed between the condenser and the evaporator and heats the supercooled liquid with a portion of the exhaust gas and provides the same to the evaporator.

IPC Classes  ?

• F28D 21/00 - Heat-exchange apparatus not covered by any of the groups
• F23J 15/06 - Arrangements of devices for treating smoke or fumes of coolers
• F28F 13/12 - Arrangements for modifying heat transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
• F28F 27/00 - Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus

Abstract

222O) and having an oxygen content of 2.4 to 7.1 wt %.

IPC Classes  ?

• C01B 17/26 - Preparation by reduction with carbon
• H01M 10/0562 - Solid materials

Abstract

22S).

IPC Classes  ?

• C01B 17/22 - Alkali metal sulfides or polysulfides
• C01B 17/26 - Preparation by reduction with carbon
• C01B 17/40 - Making shaped products, e.g. granules
• H01M 10/0562 - Solid materials

Abstract

2342333), to thereby remove the Ca material and recover ammonia; and producing second gypsum having higher purity than the first gypsum by mixing the first gypsum with waste liquid generated in the step of recovering ammonia and then injecting sulfuric acid. According to the present invention, the issue of scale caused by calcium can be solved, and the costs of manufacturing sodium bicarbonate and gypsum can be reduced.

IPC Classes  ?

• C01D 7/18 - Preparation by the ammonia-soda process
• C01F 11/46 - Sulfates

Abstract

A method for manufacturing lithium phosphate, according to the present invention, comprises the steps of: adding a lithium-containing solution into a reactor; adding an alkaline material and a phosphorus source material into the reactor; stirring the lithium-containing solution in which the alkaline material and the phosphorus source material are added, to grow lithium phosphate nucleus particles, thereby obtaining a lithium phosphate slurry; and subjecting the slurry to solid-liquid separation to thereby obtain lithium phosphate, wherein one of the alkaline material and the phosphorus source material is added into the upper portion of the reactor, and the other thereof is added into the lower portion of the reactor.

IPC Classes  ?

• C01B 25/30 - Alkali metal phosphates

Abstract

A double metal cyanide catalyst, according to an embodiment of the present invention, comprises a metal salt, a metal cyanide salt, a complexing agent, and a co-complexing agent, wherein the complexing agent includes at least one selected from acrylic or methacrylic compounds, and the co-complexing agent may be a homopolymer having a weight-average molecular weight of 5500 g/mol or less.

IPC Classes  ?

• C08G 65/26 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
• C08G 64/34 - General preparatory processes using carbon dioxide and cyclic ethers
• B01J 27/26 - Cyanides
• B01J 31/22 - Organic complexes
• B01J 35/40 - Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
• B01J 37/03 - PrecipitationCo-precipitation

Abstract

An aspect of the present invention provides a method for recovering valuable metals from waste resources. The method may comprise the steps of: preparing a molten metal containing iron (Fe); adding waste resources containing valuable metals and an additive for capturing valuable metals to the molten metal to capture the valuable metals, thereby obtaining a nickel matte; and recovering the valuable metals from the nickel matte, wherein the additive may include a sulfate.

IPC Classes  ?

• C22B 23/02 - Obtaining nickel or cobalt by dry processes
• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
• H01M 10/54 - Reclaiming serviceable parts of waste accumulators

Abstract

244) instead of sulfur, as a sulfurization raw material, during the manufacture of the nickel matte.

IPC Classes  ?

• C22B 23/02 - Obtaining nickel or cobalt by dry processes
• C22B 23/06 - Refining
• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof

Abstract

A method for recovering lithium according to the present invention comprises the steps of: preparing a lithium sulfate aqueous solution; obtaining a lithium hydroxide aqueous solution from the lithium sulfate aqueous solution through a lithium sulfate-lithium hydroxide conversion process; obtaining crystallized lithium hydroxide monohydrate and a crystallized filtrate from the lithium hydroxide aqueous solution through a crystallization process; and carbonating the crystallization filtrate to obtain lithium carbonate, wherein in the step of obtaining a lithium hydroxide aqueous solution from the lithium sulfate aqueous solution, if the lithium hydroxide aqueous solution satisfies equations 1 and 2, the method further comprises a step of adding sodium hydroxide to the lithium hydroxide aqueous solution.

IPC Classes  ?

• C22B 26/12 - Obtaining lithium
• C22B 3/12 - Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic alkaline solutions
• C22B 3/22 - Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means
• H01M 10/54 - Reclaiming serviceable parts of waste accumulators

Abstract

Disclosed is a motion amplification device including: an encoder receiving a first frame and a second frame arbitrarily adjacent in an image, and decomposing the first frame into first shape information and first texture information and decomposing the second frame into second shape information and second texture information; a first module generating a third frame in which a motion of an object is amplified based on the first shape information, the second shape information, and the second texture information; a second module analyzing an intensity of the motion based on the first shape information, the second shape information, and the first texture information; and a third module generating amplification image data indicating the intensity of the motion on the third frame.

IPC Classes  ?

• G06T 7/246 - Analysis of motion using feature-based methods, e.g. the tracking of corners or segments
• G01P 13/00 - Indicating or recording presence or absence of movementIndicating or recording of direction of movement
• G06T 7/00 - Image analysis
• G06T 7/40 - Analysis of texture
• G06T 7/579 - Depth or shape recovery from multiple images from motion

Abstract

This apparatus for firing a cathode material of a secondary battery comprises: a heating section, which extends in a first direction in the horizontal direction; a temperature maintenance section, which is connected to the heating section and extends in the first direction; and a cooling section, which is connected to the temperature maintenance section and extends in a second direction that is different from the first direction in the horizontal direction.

IPC Classes  ?

• F27B 9/14 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment
• F27B 9/26 - Furnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatmentFurnaces through which the charge is moved mechanically, e.g. of tunnel type Similar furnaces in which the charge moves by gravity characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path on or in trucks, sleds, or containers
• F27D 5/00 - Supports, screens or the like for the charge within the furnace
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present invention relates to a method for manufacturing a positive electrode active material for a lithium secondary battery, comprising the steps of: preparing a manganese-rich transition metal precursor having a molar ratio (Mn/M) of manganese (Mn) to transition metal (M) of 0.5 to 0.75; primarily calcining and oxidizing the transition metal precursor; and secondarily calcining and lithiating the oxidized transition metal precursor to form a lithium and manganese-rich lithium transition metal oxide.

IPC Classes  ?

• C01G 53/00 - Compounds of nickel
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present invention relates to a lithium compound, a nickel-based cathode active material, a method for preparing lithium oxide, a method for preparing a nickel-based cathode active material, and a secondary battery using same. The lithium compound includes primary particles of Li2O having an average particle diameter (D50) of less than or equal to 5 μm; and secondary particles composed of the primary particles.

IPC Classes  ?

• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• C01D 15/02 - OxidesHydroxides
• C01G 53/00 - Compounds of nickel
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

Abstract

The present invention relates to a manufacturing method for lithium hydroxide and, particularly, to a manufacturing method for high-purity lithium hydroxide. More particularly, the present invention relates to a manufacturing method for lithium hydroxide, comprising: a step in which a lithium salt aqueous solution is injected into a salt compartment between adjacent anion dialysis and cation dialysis membranes of a bipolar electrodialysis device, an acid-compartment reaction solution is injected into an acid compartment between a bipolar membrane and the anion dialysis membrane, and a base-compartment reaction solution is injected into a base compartment between a bipolar membrane and the cation dialysis membrane; a step in which a desalted solution formed in the salt compartment is supplied to a salt tank, an acid solution formed in the acid compartment is supplied to an acid tank, and a lithium hydroxide solution formed in the base compartment is supplied to a base tank; and a step in which the desalted solution in the salt tank is circulated and supplied to the salt compartment, the acid solution in the acid tank is circulated and supplied to the acid compartment, and the lithium hydroxide solution in the base tank is circulated and supplied to the base compartment, wherein the gauge pressure of the salt compartment is higher than the gauge pressure of the acid compartment.

IPC Classes  ?

• C01D 1/38 - PurificationSeparation by dialysis
• C01D 1/30 - PurificationSeparation by crystallisation
• C01D 15/02 - OxidesHydroxides
• B01D 61/44 - Ion-selective electrodialysis
• B01D 61/42 - ElectrodialysisElectro-osmosis

Abstract

The present invention relates to a simultaneous production method of lithium hydroxide and sulfuric acid. Provided is a simultaneous production method of lithium hydroxide and sulfuric acid, the method comprising the steps of: preparing a bipolar membrane electrodialysis device including a first bipolar membrane, an anion exchange membrane, a cation exchange membrane, and a second bipolar membrane, wherein an acid chamber is formed between the first bipolar membrane and the anion exchange membrane, a salt chamber is formed between the anion exchange membrane and the cation exchange membrane, and a base chamber is formed between the cation exchange membrane and the second bipolar membrane; injecting a lithium sulfate aqueous solution into the salt chamber of the bipolar membrane electrodialysis device, injecting a sulfuric acid aqueous solution into the acid chamber, and injecting a lithium hydroxide aqueous solution into the base chamber; and discharging a desalted solution formed in the salt chamber of the bipolar membrane electrodialysis device, discharging the sulfuric acid aqueous solution formed in the acid chamber, and discharging the lithium hydroxide aqueous solution formed in the base chamber.

IPC Classes  ?

• C01D 1/38 - PurificationSeparation by dialysis
• C01D 15/02 - OxidesHydroxides
• C01B 17/90 - SeparationPurification
• B01D 61/44 - Ion-selective electrodialysis
• B01D 61/42 - ElectrodialysisElectro-osmosis

Abstract

A positive active material for a lithium secondary battery according to an exemplary embodiment includes a lithium composite transition metal oxide and a surface layer formed on a particle surface of the lithium composite transition metal oxide, and a content of nickel (Ni) in the lithium composite transition metal oxide. is more than 0.85 mol, the surface layer contains cobalt (Co) and aluminum (Al), and in the surface layer, the distribution of the cobalt (Co) and aluminum (Al) components have different concentration gradients.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• C01G 53/00 - Compounds of nickel
• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 10/052 - Li-accumulators

Abstract

The present invention relates to a photovoltaic module having a fastening part, or a photovoltaic apparatus including same, and a module coupling device. The photovoltaic apparatus according to one embodiment of the present invention comprises: a photovoltaic module including solar cells, an encapsulant, a cover layer, a metal layer and a fastening part; and a provision module including a load support part coupled in contact with the fastening part.

IPC Classes  ?

• H02S 30/10 - Frame structures
• H02S 20/22 - Supporting structures directly fixed to an immovable object specially adapted for buildings

Abstract

One aspect of the present invention provides a more economical anode material using spheroidized natural graphite and a method for manufacturing same, wherein spheroidized natural graphite fine powder in a classification step is used as the anode material and thus a production yield of the spheroidized natural graphite is increased.

IPC Classes  ?

• H01M 4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
• H01M 4/1393 - Processes of manufacture of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
• H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present invention relates to a solid electrolyte, its manufacturing method, and a lithium secondary battery including the same. In an exemplary embodiment, a solid electrolyte may have some of its halogen elements doped with oxygen.

IPC Classes  ?

• H01M 10/0562 - Solid materials
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
• H01M 10/058 - Construction or manufacture

Abstract

The present invention relates to a cathode active material for a lithium secondary battery, comprising a layered lithium transition metal oxide that contains an excess of lithium and manganese and consists of secondary particles formed by aggregating a plurality of primary particles, wherein the primary particles include plate-shaped particles and have an average aspect ratio of 5-90.

IPC Classes  ?

• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• C01G 45/12 - Complex oxides containing manganese and at least one other metal element
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

A heat controllable battery pack is provided. The battery pack includes a lower cover including a first cooling line, through which a refrigerant moves, installed therein and supporting a lower portion of a plurality of cell modules, a plurality of crash structures installed in positions between the plurality of cell modules on an upper portion of the lower cover and including a second cooling line, through which the refrigerant cooling the cell modules moves, installed therein, a side frame protecting side surfaces of the plurality of cell modules, and an upper cover covering an upper portion of the plurality of cell modules.

IPC Classes  ?

• H01M 10/6568 - Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
• H01M 10/613 - Cooling or keeping cold
• H01M 10/625 - Vehicles
• H01M 10/6556 - Solid parts with flow channel passages or pipes for heat exchange
• H01M 50/204 - Racks, modules or packs for multiple batteries or multiple cells
• H01M 50/242 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
• H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
• H01M 50/258 - Modular batteriesCasings provided with means for assembling
• H01M 50/271 - Lids or covers for the racks or secondary casings

Abstract

It is related to a positive active material for all solid batteries, comprising: a positive active material with layered crystal structure, and wherein, a XRD spectrum of a grain of the positive active material has diffraction peaks corresponding to the (003) plane and the (110) plane, and a ratio of the full width at half maximum (FWHM) of the diffraction peak corresponding to the (110) plane to the full width at half maximum (FWHM) of the diffraction peak corresponding to the (003) plane is 1.30 to 1.60.

IPC Classes  ?

• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 10/0562 - Solid materials
• H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells

Abstract

Provided is a method of recovery lithium ion, including adding a residue after leaching lithium from an ore containing spodumene into a solution in which a lithium ion is dissolved; absorbing a lithium ion into the residue by reacting the solution containing the residue at 50-90° C.; and recovering a cake containing a lithium from the residue in which the lithium ion has been absorbed by performing solid-liquid separation.

IPC Classes  ?

• C22B 26/12 - Obtaining lithium
• C22B 1/02 - Roasting processes
• C22B 3/08 - Sulfuric acid
• C22B 3/24 - Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means by adsorption on solid substances, e.g. by extraction with solid resins

Abstract

The present exemplary embodiment relates to a negative active material precursor and its manufacturing method. According to an exemplary embodiment, it is disclosed a negative active material precursor, comprising: a stacked portion disposed at a center of the negative active material precursor and where graphite particles are stacked; and at least one of void portion disposed between the center and a surface portion of the negative active material precursor, wherein, an average particle diameter D50 is 10 to 18 μm, and the below equation 1 is satisfied. The present exemplary embodiment relates to a negative active material precursor and its manufacturing method. According to an exemplary embodiment, it is disclosed a negative active material precursor, comprising: a stacked portion disposed at a center of the negative active material precursor and where graphite particles are stacked; and at least one of void portion disposed between the center and a surface portion of the negative active material precursor, wherein, an average particle diameter D50 is 10 to 18 μm, and the below equation 1 is satisfied. ( D ⁢ 90 - D ⁢ 10 ) / D ⁢ 50 ≤ 1. 〈 Equation ⁢ 1 〉 (In equation 1, D10, D50, and D90 mean particle diameters corresponding to 10, 50, and 90% volume accumulation from a small size, respectively.)

IPC Classes  ?

• H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
• C01B 32/21 - After-treatment
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

Abstract

The present embodiment relates to an anode active material precursor, an anode active material, and a method for manufacturing same. An anode active material precursor according to an embodiment comprises: a carbon-based material comprising a metal compound; and a petroleum-based pitch, wherein the petroleum-based pitch comprises, on the basis of 10 parts by weight of the carbon-based material, 3 to 10 parts by weight, the softening point of the petroleum-based pitch may be 220-280° C., and the content of the metal compound may be greater than or equal to 10 ppm.

IPC Classes  ?

• H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
• C01B 32/205 - Preparation
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

Abstract

The present exemplary embodiments may provide a negative electrode material for a lithium secondary battery, the negative electrode material containing nano-silicon, crystalline carbon, amorphous carbon, and carbon nanotubes, wherein one end of the carbon nanotube is located inside the negative electrode material and the other end of the carbon nanotube protrudes out of the negative electrode material, and an average length of the carbon nanotubes protruding out of the negative electrode material is 0.1 μm to 1 μm.

IPC Classes  ?

• H01M 4/583 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx
• B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
• C01B 32/16 - Preparation
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

Abstract

Provided are a positive active material for a lithium secondary battery, a positive electrode including the same, and a lithium secondary battery including the same, the positive active material for lithium secondary batteries including a first metal oxide, which includes nickel, cobalt and manganese, being in single particle form; and a second metal oxide that contains nickel, cobalt, and manganese and is in the form of a secondary particle containing a plurality of primary particles and has an average particle diameter D50 larger than that of the first metal oxide; wherein, a nickel content of the second metal oxide is 0.8 mol or more, based on 1 mole of the total of nickel, cobalt and manganese in the second metal oxide, and a nickel content of the first metal oxide is 0.03 mole to 0.17 mole more than the nickel content of the second metal oxide.

IPC Classes  ?

• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

Abstract

One aspect of the present invention provides: a precursor for a negative electrode material of a lithium secondary battery having high capacity characteristics, excellent processability, and excellent lifespan characteristics through a structure in which fine natural graphite is distributed in high-hardness artificial graphite; a negative electrode material manufactured therefrom; and a method for manufacturing same.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/583 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx
• C01B 32/21 - After-treatment
• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 4/1393 - Processes of manufacture of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

An aspect of the present invention provides: a precursor for a negative electrode material of a lithium secondary battery having high capacity characteristics, excellent processability, and excellent lifespan characteristics by using artificial graphite as an inner core and natural graphite as a shell; a negative electrode material manufactured therefrom; and a method for manufacturing same.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/583 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx
• C01B 32/21 - After-treatment
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present exemplary embodiments relate to a sodium ion adsorbent, a method of manufacturing the same, and a method for removing sodium ions. The present exemplary embodiments relate to a sodium ion adsorbent, a method of manufacturing the same, and a method for removing sodium ions. According to an exemplary embodiment, a sodium ion adsorbent for removing sodium ions may include a compound represented by Chemical Formula 1 below. [Chemical Formula 1] HxM1-xAlSi2O6, in Chemical Formula 1, M is one or more elements selected from Na, K, Cs, and Rb, and 0

IPC Classes  ?

• B01J 20/16 - Alumino-silicates
• B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
• B01J 20/30 - Processes for preparing, regenerating or reactivating
• C02F 1/28 - Treatment of water, waste water, or sewage by sorption
• C02F 103/08 - Seawater, e.g. for desalination

Abstract

A positive electrode active material for an all-solid-state battery of the present exemplary embodiments may include: a core including a lithium nickel-based oxide; a first coating layer containing cobalt which is placed on a surface of the core; and a second coating layer containing a lithium transition metal oxide which is placed on a surface of the first coating layer.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 4/04 - Processes of manufacture in general
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy

Abstract

The present exemplary embodiments relate to a positive electrode active material, its manufacturing method, and a lithium secondary battery including the same. The positive electrode active material according to an exemplary embodiment is a metal oxide particle including: a metal oxide particle comprising a central portion and a surface portion located on the surface of the central portion, wherein, the metal oxide particle includes nickel, cobalt, manganese, and doping elements and is composed of a single particle, and the metal oxide particle includes a crystal phase of layered structure belonging to the R-3m space group on the surface, and an average grain size is 1550 Å or more.

IPC Classes  ?

• C01G 53/00 - Compounds of nickel
• C01G 53/04 - Oxides
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy

Abstract

The present exemplary embodiments relate to a lithium metal electrode, a method of manufacturing the same, and a lithium secondary battery including the same. According to an exemplary embodiment, a lithium metal electrode including: a current collector and a metal layer which is disposed on at least one surface of the current collector and includes a lithium component, in which a protective layer including amorphous carbon and lithium-ion conduction promoting ceramic particles is formed on a surface of the metal layer, may be provided.

IPC Classes  ?

• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 4/04 - Processes of manufacture in general
• H01M 4/134 - Electrodes based on metals, Si or alloys
• H01M 4/1395 - Processes of manufacture of electrodes based on metals, Si or alloys
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 10/052 - Li-accumulators

Abstract

The present invention relates to a discharge method of a battery, comprising: a first discharging step of discharging a battery by connecting the battery and a power converter and applying voltage thereto; and a second discharging step of discharging the battery by applying a reverse voltage of the voltage of the first discharging step, after the first discharging step. According to the present invention, electrical energy of a battery can be recovered and recycled, and an electrically safe state can be secured in a subsequent disassembly process by putting the battery in a completely discharged state in which normal operation is impossible.

IPC Classes  ?

• H01M 10/44 - Methods for charging or discharging
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Abstract

The FeCoV based alloy sheet according to the present invention comprises γ-austenite and residual α-ferrite, and has the average grain size of 50 to 100 ㎛.

IPC Classes  ?

• C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
• C21D 1/26 - Methods of annealing
• C21D 1/72 - Temporary coatings or embedding materials applied before or during heat treatment during chemical change of surfaces
• C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor
• B22D 27/00 - Treating the metal in the mould while it is molten or ductile
• B22D 7/06 - Ingot moulds or their manufacture
• C22C 38/10 - Ferrous alloys, e.g. steel alloys containing cobalt
• C22C 38/12 - Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium or niobium

Abstract

A system for recovering carbon dioxide and carbon monoxide from steel by-product gas according to the present invention comprises: a pretreatment unit (100) for producing refined by-product gas by removing impurities in the steel by-product gas; a carbon dioxide recovery unit (200) which selectively separates carbon dioxide in the refined by-product gas to produce carbon dioxide-free refined by-product gas and recovers the separated carbon dioxide; and a carbon monoxide recovery unit (300) for recovering carbon monoxide in the carbon dioxide-free refined by-product gas, wherein the pretreatment unit (100) comprises a separation tower (110), a dust collector (120), an adsorption tower (130), and a catalyst tower (140), and the catalyst tower (140) can remove 99 vol% or more of oxygen in the steel by-product gas.

IPC Classes  ?

• C21B 7/00 - Blast furnaces
• B01D 53/62 - Carbon oxides
• B01D 53/75 - Multi-step processes
• B01D 53/78 - Liquid phase processes with gas-liquid contact
• B01D 53/86 - Catalytic processes
• B01D 53/04 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
• B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
• B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
• C01B 32/40 - Carbon monoxide
• C01B 32/50 - Carbon dioxide

Abstract

It is related to a manufacturing method of a negative electrode active material for lithium secondary battery, comprising: preparing an artificial graphite; mixing the artificial graphite and a coal tar to form a coating layer on the artificial graphite; and carbonizing the artificial graphite on which the coating layer is formed, wherein, the artificial graphite has a degree of sphericity of 0.6 to 1; and in the step of preparing an artificial graphite, the artificial graphite contains 20 wt % or more of artificial graphite derived from coal-based coke.

IPC Classes  ?

• H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
• C01B 32/205 - Preparation
• C01B 32/21 - After-treatment
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids

Abstract

A cathode active material for a lithium secondary battery according to the present embodiment comprises: a lithium-manganese-rich first cathode active material represented by chemical formula 1; and a high-nickel single-particle second cathode active material represented by chemical formula 2, wherein the average particle size (D50_1) of the lithium-manganese-rich first cathode active material may be larger than the average particle size (D50_2) of the high-nickel single-particle second cathode active material. [Chemical formula 1] Li1+x1(Ni(1-a1-b1)Coa1Mnb1)O2 (wherein -0.5≤x1≤0.5, 0≤a1≤0.2, and 0.5≤b1≤1.) [Chemical formula 2] Li1+x2(Ni(1-a2-b2-c2)Coa2Mnb2Mc2)O2 (wherein -0.5≤x2≤0.5, 0≤a2≤0.2, 0≤b2≤0.1, and 0≤c2≤0.03, and M is at least one element selected from the group consisting of Fe, Cr, Ti, Zn, V, Al, Mg, and Zr.)

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• C01G 53/00 - Compounds of nickel
• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

One embodiment of the present invention relates to a lithium metal anode. Wherein the lithium metal anode comprises a current collector and a lithium metal thin film layer disposed on at least one surface of the current collector and having a thickness in a range of 0.1 to 200 μm and a coating layer disposed on a surface of the lithium metal thin film layer, wherein, the coating layer comprising a Li—N—C—H—O based ionic compound.

IPC Classes  ?

• H01M 4/134 - Electrodes based on metals, Si or alloys
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 4/04 - Processes of manufacture in general
• H01M 4/1395 - Processes of manufacture of electrodes based on metals, Si or alloys
• H01M 4/66 - Selection of materials
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

Abstract

An olivine cathode active material for a lithium secondary battery according to the present invention comprises: rod-shaped particles having an average long-side length of 250 nm to 350 nm and a short-side length of 70 nm to 95 nm; and flake-shaped particles having an average long-axis length of 350 nm to 450 nm and a short-axis length of 200 nm to 250 nm in terms of the broad surface, wherein the quantity percentage of the flake-shaped particles to the rod-shaped particles is 10% to 50%.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/136 - Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
• H01M 4/1397 - Processes of manufacture of electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

An olivine cathode active material for a lithium secondary battery according to an embodiment of the present invention comprises: a core portion containing a lithium metal phosphate; and a carbon coating layer disposed on the surface of the core portion, and can satisfy the following relational expression 2. [Relational expression 2]: 0.20 ≤ D50*Dc^2*C/1000 ≤ 0.50 (In relational expression 2, D50 is the average particle size (µm) of the olivine cathode active material, Dc is the grain size (nm) in the olivine cathode active material, and C is the weight percentage (%) of carbon in the olivine cathode active material.)

IPC Classes  ?

• C01B 25/45 - Phosphates containing plural metal, or metal and ammonium
• C01B 25/37 - Phosphates of heavy metals
• H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present invention relates to a cathode active material for a lithium secondary battery, the cathode active material being a single particle-based nickel-containing layered lithium transition metal oxide which has a volume-based average particle diameter (Dv50) of 5-8 μm, comprises a small-particle-diameter single particle formed from one primary particle, and a medium-particle-diameter quasi-single particle formed from a plurality of primary particles, and, in a number-based particle size distribution curve analysis, has maximum peaks in the particle diameter ranges of 0.7-1.2 μm and 2.5-4.0 μm.

IPC Classes  ?

• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

ppp is the average particle diameter (D50) of the cathode active material after nine tons of pressure are applied.

IPC Classes  ?

• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• C01G 53/00 - Compounds of nickel
• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present invention relates to a cathode active material for a lithium secondary battery, comprising: a core containing a lithium transition metal oxide doped with boron; and a coating layer disposed on the core and containing boron and cobalt, wherein the total boron content, which is the sum of boron doped in the lithium transition metal oxide and boron contained in the coating layer, is 1200 ppm or less relative to the total weight of the cathode active material, and the cathode active material is composed of single particles.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 10/052 - Li-accumulators
• C30B 29/22 - Complex oxides
• C30B 1/02 - Single-crystal growth directly from the solid state by thermal treatment, e.g. strain annealing
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

Provided is a method for recovering lithium from a waste lithium battery cell including: heat treating a mixture including a waste lithium battery cell and an additive; and trapping a lithium salt produced in the heat treating.

IPC Classes  ?

• H01M 10/54 - Reclaiming serviceable parts of waste accumulators
• C22B 7/00 - Working-up raw materials other than ores, e.g. scrap, to produce non-ferrous metals or compounds thereof
• C22B 26/12 - Obtaining lithium

Abstract

It is related to a positive electrode active material for lithium secondary battery, comprising: a compound represented by Chemical Formula 1, wherein a molar content of lithium present in the structure of the positive electrode active material, measured through neutron diffraction analysis, is 1.01 to 1.15 for 1 mole of the positive electrode active material, a method of preparing it, and a lithium secondary battery including the same. It is related to a positive electrode active material for lithium secondary battery, comprising: a compound represented by Chemical Formula 1, wherein a molar content of lithium present in the structure of the positive electrode active material, measured through neutron diffraction analysis, is 1.01 to 1.15 for 1 mole of the positive electrode active material, a method of preparing it, and a lithium secondary battery including the same. Li1+a(NibM11-b)1-aO2  [Chemical Formula 1] It is related to a positive electrode active material for lithium secondary battery, comprising: a compound represented by Chemical Formula 1, wherein a molar content of lithium present in the structure of the positive electrode active material, measured through neutron diffraction analysis, is 1.01 to 1.15 for 1 mole of the positive electrode active material, a method of preparing it, and a lithium secondary battery including the same. Li1+a(NibM11-b)1-aO2  [Chemical Formula 1] In the Chemical Formula 1, 0

IPC Classes  ?

• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• C01G 53/00 - Compounds of nickel
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 10/052 - Li-accumulators

Abstract

A vertical type apparatus for firing a cathode material of a secondary battery is provided. The vertical type apparatus for firing the cathode material according to the present disclosure includes a plurality of saggers, each having an open upper portion, provided with a through-slit for gas flow in a lower surface thereof, and loaded with the cathode material therein, and a plurality of unit firing furnaces, each having an open upper portion, each plurally stacked in the vertical direction, each receiving the respective sagger.

IPC Classes  ?

• H01M 4/04 - Processes of manufacture in general
• F27B 17/00 - Furnaces of a kind not covered by any of groups
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present exemplary embodiments relate to a positive electrode active material and a lithium secondary battery including the same. According to an exemplary embodiment, a positive electrode active material for a lithium secondary battery including a metal oxide particle including nickel, cobalt, manganese and aluminum, and three types of doping elements doped on the metal oxide particle is provided.

IPC Classes  ?

• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 10/052 - Li-accumulators

Abstract

A method of analyzing a motion on the basis of feature tracking is disclosed. The method includes the steps of: capturing image frames; filtering a region of interest (ROI) for the captured image frames; tracking a feature in the captured image frames; removing an extreme value on the basis of an optimum model; and outputting an analysis result. A method of analyzing a motion on the basis of feature tracking is disclosed. The method includes the steps of: capturing image frames; filtering a region of interest (ROI) for the captured image frames; tracking a feature in the captured image frames; removing an extreme value on the basis of an optimum model; and outputting an analysis result. Further disclosed is a system of analyzing a motion on the basis of feature tracking, the system comprising a controller configured to perform each step of the method.

IPC Classes  ?

• G06T 7/246 - Analysis of motion using feature-based methods, e.g. the tracking of corners or segments
• G06T 3/4007 - Scaling of whole images or parts thereof, e.g. expanding or contracting based on interpolation, e.g. bilinear interpolation
• G06T 3/60 - Rotation of whole images or parts thereof
• G06T 7/13 - Edge detection
• G06V 10/25 - Determination of region of interest [ROI] or a volume of interest [VOI]
• G06V 10/44 - Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersectionsConnectivity analysis, e.g. of connected components

Abstract

The present exemplary embodiments relate to a positive electrode active material and a lithium secondary battery including the same. According to an exemplary embodiment, a positive electrode active material for a lithium secondary battery including a metal oxide particle including nickel, cobalt and manganese, and five types of doping elements doped on the metal oxide particles is provided.

IPC Classes  ?

• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• C01G 53/00 - Compounds of nickel
• H01M 4/02 - Electrodes composed of, or comprising, active material
• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

Abstract

The present invention provides a positive electrode active material, its manufacturing method and a lithium secondary battery containing the same. The positive electrode active material for a lithium secondary battery of the present invention is a positive electrode active material for lithium secondary battery, comprising: a lithium metal oxide particle; and a coating layer positioned on at least part of the lithium metal oxide particle surface; wherein, the coating layer includes any one or more of group 5 elements and group 6 elements, B, LiOH, Li2CO3 and Li2SO4.

IPC Classes  ?

• C01G 53/00 - Compounds of nickel
• H01M 10/052 - Li-accumulators

Abstract

Provided is a positive active material for a lithium secondary battery including a compound represented by the following formula 1, wherein, a molar content of lithium present in a structure of the positive active material, measured through neutron diffraction analysis, is 1.02 to 1.15 per mole of the positive active material, and a c-axis lattice constant variation ratio of the R-3m structure is less than 2.3% for charge and discharge in the 2.5 V to 4.25 V range, [Chemical Formula 1] Li1+a(NibM11-b)1-aO2 in formula 1 above, 0

IPC Classes  ?

• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• C01G 53/00 - Compounds of nickel
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

Abstract

The present embodiments pertain to a positive electrode active material for a lithium secondary battery, and a lithium secondary battery including same. A positive electrode active material for a lithium secondary battery according to an embodiment may comprise: a metal oxide composed of single particles; a first coating layer which is disposed on the surface of the metal oxide and has a fiber shape; and a second coating layer which is disposed on the surface of the metal oxide and has a dot shape.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 10/052 - Li-accumulators
• C01G 53/00 - Compounds of nickel
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present invention relates to an anode active material for a lithium secondary battery, a preparation method therefor, and a lithium secondary battery comprising same. Provided is the anode active material for a lithium secondary battery, comprising: a core including lithium metal oxide; a coating particle positioned on the core; and a diffusion coating layer positioned on the core, wherein the lithium metal oxide has a single-particle form, the diffusion coating layer has a film form, and the ratio of the long axis to the short axis of the coating particle is greater than 2.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• C01G 53/00 - Compounds of nickel
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present embodiments relate to a positive electrode active material precursor for a rechargeable lithium battery, a manufacturing method of a positive electrode active material using same, and a rechargeable lithium battery including a positive electrode active material manufactured using same. In a positive electrode active material precursor for a lithium secondary battery according to an embodiment, the full width at half maxim (FWHM, 200) of the diffraction peak of the (200) plane by X-ray diffraction may range from 0.28° to 1.30°.

IPC Classes  ?

• C01G 53/00 - Compounds of nickel
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

A camera position tracking device according to the present disclosure may comprise a storage device for storing multiple 360-degree images photographed at different positions in a real environment, and a control device for obtaining position information of a camera by using a query image received from the camera. The control device may generate a 3D virtual environment corresponding to the real environment by using the multiple 360-degree images, and determine the position of the camera within the 3D virtual environment according to a relative positional relationship between at least one of the multiple 360-degree images and the query image.

IPC Classes  ?

• G06T 7/70 - Determining position or orientation of objects or cameras
• G06T 7/246 - Analysis of motion using feature-based methods, e.g. the tracking of corners or segments
• G06T 19/00 - Manipulating 3D models or images for computer graphics
• G06V 10/74 - Image or video pattern matchingProximity measures in feature spaces

Abstract

6(1-y)2y1-y5-2y1-y1-y In chemical formula 1, A is an element in the boron group , X is halogen, and 0 < y ≤ 1.

IPC Classes  ?

• H01M 10/0562 - Solid materials
• H01M 10/052 - Li-accumulators
• C01B 25/14 - Sulfur, selenium, or tellurium compounds of phosphorus

Abstract

The present embodiments relate to an olivine-based cathode active material for a lithium secondary battery and a method for preparing same. The olivine-based cathode active material for a lithium secondary battery according to an embodiment comprises: a core part; and a carbon coating layer located on the surface of the core part, and satisfies the following relational expression 1. [Relational expression 1] 13.0 < C%*BET/m < 40.0, wherein in relational expression 1, C% is the wt% of the coating layer, BET is the specific surface area of the olivine-based cathode active material for a lithium secondary battery, and m is the tap density of the olivine-based cathode active material for a lithium secondary battery.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
• C01B 25/37 - Phosphates of heavy metals
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present invention relates to a method for preparing lithium hydroxide by using lithium carbonate. The method for preparing lithium hydroxide by using lithium carbonate, according to the present invention, comprises the steps of: extracting lithium carbonate from a lithium-containing solution; dissolving lithium carbonate in an acid, thereby obtaining a lithium chloride aqueous solution; removing ion impurities from the lithium chloride aqueous solution; and injecting, into a bipolar electrodialysis device, the lithium chloride aqueous solution from which the ion impurities have been removed, thereby converting same into a lithium hydroxide aqueous solution and obtaining an acid aqueous solution and a salt solution, which are by-products

IPC Classes  ?

• C01D 15/02 - OxidesHydroxides
• C01D 1/38 - PurificationSeparation by dialysis
• B01D 61/44 - Ion-selective electrodialysis
• C22B 3/06 - Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions

Abstract

DGDGG) of the amorphous carbon material is 0.1 or less.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 4/48 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
• H01M 10/052 - Li-accumulators
• C01B 32/20 - Graphite
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present invention relates to a negative electrode for a lithium secondary battery, comprising a negative electrode active material layer containing a lithium alloy, wherein the lithium alloy includes lithium (Li) and an element capable of alloying with the lithium and improving the tensile strength of the lithium, and the content of the element is 0.2% to 28.6% by weight based on the weight of the lithium alloy.

IPC Classes  ?

• H01M 4/134 - Electrodes based on metals, Si or alloys
• H01M 4/40 - Alloys based on alkali metals
• H01M 4/46 - Alloys based on magnesium or aluminium
• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 4/42 - Alloys based on zinc
• H01M 4/1395 - Processes of manufacture of electrodes based on metals, Si or alloys
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present invention relates to a positive electrode active material for a lithium secondary battery, the positive electrode active material comprising: a core including a layered lithium transition metal oxide that contains at least 60 mol% of nickel (Ni) with respect to the total number of moles of transition metals; and a coating layer disposed on the core and including cobalt (Co), aluminum (Al), or a combination thereof, and is composed of single particles, wherein the coating layer is an island-type layer.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present invention relates to a cathode active material for all-solid-state batteries, the cathode active material comprising: a core containing a layered lithium transition metal oxide; and a coat arranged on the core, wherein the intensity ratio of the diffraction peak of the (003) plane to that of the (104) plane, I(003)/I(104), is between 1.20 and 1.40 as measured by X-ray diffraction spectrum analysis, with the lithium transition metal oxide ranging in molar ratio of lithium to transition metal (Li/Me) from 1.02 to 1.05.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 10/052 - Li-accumulators
• C01G 53/00 - Compounds of nickel
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

233), cerium (Ce), lanthanum (La), ruthenium (Ru), and potassium (K), and a method for producing the ammonia decomposition catalyst.

IPC Classes  ?

• B01J 23/63 - Platinum group metals with rare earths or actinides
• B01J 37/16 - Reducing
• B01J 37/08 - Heat treatment
• B01J 37/02 - Impregnation, coating or precipitation
• C01B 3/04 - Production of hydrogen or of gaseous mixtures containing hydrogen by decomposition of inorganic compounds, e.g. ammonia

Abstract

424322O (n is 1 to 6) and a manufacturing method thereof.

IPC Classes  ?

• B01J 20/08 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group comprising aluminium oxide or hydroxideSolid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group comprising bauxite
• B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
• B01J 20/30 - Processes for preparing, regenerating or reactivating
• C22B 26/12 - Obtaining lithium

Abstract

A bioink manufacturing device is provided. The bioink manufacturing device according to the invention includes: a reaction container for reacting a decellularized xenogeneic organ tissue with an inkification solution, a bioink liquefaction unit for stirring and crushing the decellularized xenogeneic organ tissue to liquefy same into bioink, and a bioink discharge unit for discharging the liquefied bioink outside of the reaction container.

IPC Classes  ?

• A61L 27/36 - Materials for prostheses or for coating prostheses containing ingredients of undetermined constitution or reaction products thereof
• C09D 11/04 - Printing inks based on proteins
• B33Y 70/00 - Materials specially adapted for additive manufacturing

Abstract

A decellularization reaction apparatus is provided. The decellularization reaction apparatus according to the present invention comprises: a mesh chamber for accommodating the tissue of a xenograft target for decellularization thereinside; at least one reaction vessel for storing a decellularization solution; and a first reactor for circulating the decellularization solution inside and outside the reaction vessel and analyzing various physical properties of the circulating decellularization solution in situ.

IPC Classes  ?

• C12M 3/00 - Tissue, human, animal or plant cell, or virus culture apparatus
• C12M 1/34 - Measuring or testing with condition measuring or sensing means, e.g. colony counters
• C12M 1/00 - Apparatus for enzymology or microbiology
• C12M 3/06 - Tissue, human, animal or plant cell, or virus culture apparatus with filtration, ultrafiltration, inverse osmosis or dialysis means

Abstract

The present invention relates to an anode material for a lithium secondary cell, a precursor for the anode material, a lithium secondary cell, and a manufacturing method of the anode material. A precursor for the anode material according to an aspect of the present invention is an anode material precursor containing graphite, wherein the graphite may have peaks in particle size ranges of 2-8 ㎛ and 10-25 ㎛, respectively, and a particle size distribution with a D50 of 6-23 ㎛.

IPC Classes  ?

• H01M 4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/1393 - Processes of manufacture of electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present invention relates to a method for recovering lithium from a lithium-containing waste liquid, and the method may comprise the steps of: filtering a positive electrode material washing solution so as to separate a solid metal included in a basic waste liquid; adding sulfuric acid to the positive electrode material washing solution from which the solid metal has been filtered so as to acidify same, and converting lithium carbonate or lithium hydroxide into lithium sulfate; concentrating the washing solution that has been converted into lithium sulfate so as to obtain a high concentration lithium sulfate solution; and incorporating the high concentration lithium sulfate solution into a resulting product leached from an ore.

IPC Classes  ?

• C22B 26/12 - Obtaining lithium
• C22B 3/08 - Sulfuric acid
• C22B 3/22 - Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means

Abstract

The present invention relates to a method for preparing lithium sulfide, the method comprising the steps of: preparing a lithium-carbon compound by mixing a carbon raw material and a lithium compound; filtering a solution obtained by mixing the lithium-carbon compound with a solvent; spray-drying the filtrate in a temperature range of 110-160 °C and an inert loop structure; and heat-treating a spray-dried product obtained by the spray-drying, and lithium sulfide having an oxygen content of less than 2.8% can be prepared.

IPC Classes  ?

• C01B 17/22 - Alkali metal sulfides or polysulfides

Abstract

The present invention relates to a lithium metal anode, an anode precursor for same, and methods for producing anode and anode precursor. A lithium metal anode according to another aspect of the present invention comprises: a current collector; a metal layer formed on the current collector; and a protective coating layer formed on the metal layer, wherein the metal layer contains an alloy of lithium in the interface in contact with the protective coating layer, and the protective coating layer is a mixture of a carbon-based material and a binder, the binder may be a polymer obtained by polymerizing a high-strength monomer grafted onto a high-ion conductivity monomer.

IPC Classes  ?

• H01M 4/134 - Electrodes based on metals, Si or alloys
• H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
• H01M 4/66 - Selection of materials
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/1395 - Processes of manufacture of electrodes based on metals, Si or alloys
• H01M 4/04 - Processes of manufacture in general
• H01M 10/052 - Li-accumulators
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present invention relates to a cathode active material for all-solid-state batteries, the cathode active material including a layered lithium nickel transition metal oxide and a coating layer on the surface of the lithium nickel transition metal oxide, wherein the coating layer contains a lithium zirconium composite oxide and is formed with a uniform thickness of 5 nm or less over the entire surface of the lithium nickel transition metal oxide.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
• C01G 53/00 - Compounds of nickel
• C01G 25/02 - Oxides
• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 10/052 - Li-accumulators
• H01M 10/0562 - Solid materials
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present invention relates to a cathode active material for all-solid-state batteries, which includes: a core containing a lithium transition metal oxide; and a coating layer arranged on the core and including a lithium borate oxide, wherein the molar ratio of lithium to boron (Li:B) in the lithium borate oxide ranges from 3:7 to 3:9.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
• H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
• H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
• H01M 10/052 - Li-accumulators
• C01G 53/00 - Compounds of nickel
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present invention relates to a cathode active material for a lithium secondary battery, and a method for preparing same, the cathode active material comprising a first cathode active material and a second cathode active material having different average particle diameters from each other, wherein the first cathode active material includes a large-diameter lithium metal oxide and a coating layer disposed on the large-diameter lithium metal oxide and containing 1.0-7.0 wt% of boron, and the second cathode active material includes a small-diameter lithium metal oxide and a coating layer disposed on the small-diameter lithium metal oxide and containing 3.0-12.0 wt% of cobalt.

IPC Classes  ?

• H01M 4/36 - Selection of substances as active materials, active masses, active liquids
• C01G 53/00 - Compounds of nickel
• H01M 4/02 - Electrodes composed of, or comprising, active material

Abstract

The present invention provides a method for recovering ammonia, the method comprising: step S1 for providing a mixed gas including ammonia; step S2 for dissolving the ammonia in water; step S3 for degassing ammonia water in which the ammonia is dissolved, and thereby separating water and ammonia gas; and step S4 for purifying the degassed ammonia.

IPC Classes  ?

• C01C 1/02 - Preparation or separation of ammonia